How to check how much RAM id dedicated to my VPS?

[now_i_m_here]

I have a custom VPS. In my plan i was offered 1 GB RAM . But i feel i don't have such amount of RAM. How i can check how much RAM is dedicated to my VPS?
Is there any option to check it independently?

[jcy1978]

Probably the easiest way to do this is with the "free" command, with the parameter to show the output in megabytes. Here's a few examples:

[root@mirrors ~]# free -m

total used free shared buffers cached
Mem: 494 490 4 0 1 50
-/+ buffers/cache: 438 56
Swap: 991 325 666


As you can see, the system above is using all of it's RAM (494MB of RAM and 490MB used).

Here's another example -

[root@www ~]# free -m
total used free shared buffers cached
Mem: 3775 2068 1707 0 266 1231
-/+ buffers/cache: 570 3205
Swap: 5759 0 5759

That server has 3775MB of RAM total, and 2068MB is used, with 1707MB of RAM free.

On a side note, if you're curious on disk space, you can check it with the "df" command and (you guessed it), the -m parameter:

[root@www ~]# df -m
Filesystem 1M-blocks Used Available Use% Mounted on
/dev/mapper/VolGroup00-LogVol00
38934 5931 30994 17% /
/dev/sda1 99 26 69 28% /boot
tmpfs 1888 0 1888 0% /dev/shm

The above system has 40GB of disk space, we're using about 6GB.


[root@www ~]# df -m

Filesystem 1M-blocks Used Available Use% Mounted on
/dev/mapper/VolGroup00-LogVol00
38934 5931 30994 17% /
/dev/sda1 99 26 69 28% /boot
tmpfs 1888 0 1888 0% /dev/shm


I hope everything works out for you and good luck!

John C. Young
Managing Director
Internet Gateway of South Beach